![]() Collins Concise English Dictionary HarperCollins. ![]() 2 adjective luminous bright, glowing 1 adjective luminous intellectually outstanding 1 adjective luminous full of light 1 adjective luminous lighted up or illuminated well-lighted: the luminous ballroom. NOTE: This term and its definition were changed in ANSI/IES RP-16-17 Addendum 4. Opticsthe luminous flux in lumens emitted per unit solid angle by a light source, measured in candles. adjective luminous radiating or reflecting light shining bright. Luminous paint, a paint made up with some phosphorescent substance, as sulphide of calcium, which after exposure to a strong light is luminous in the dark for a time. In complete darkness we cannot see/distinguish the different objects around us. (See also candela, spectral luminous efficacy of radiant flux, values of spectral luminous efficiency for photopic vision, and values of spectral luminous efficiency for scotopic vision.) Definition Of Luminous Objects Objects which emit light on their own are known as luminous objects.' More About Luminous Objects: Luminous objects are responsible for our vision. K m and K’ m are derived from the basic SI definition of luminous intensity and have the values 683 lm/W and 1,700 lm/W, respectively. The SI unit of Luminance is candela per square meter (cd/m2). It provides the amount of light that passes through, is reflected, and falls within a given solid angle. The Luminous Mysteries celebrate the most important moments in the teaching ministry of Jesus Christ, including his baptism, miracle at the wedding feast, proclamation of the Kingdom, transfiguration, and institution of the. For scotopic vision, the corresponding spectral luminous efficiency function, V'(λ), and the corresponding maximum spectral luminous efficacy, K’ m, are substituted in the above equation. In simple words, luminance is the intensity of the emitted light from a surface per unit area in a particular direction that can be considered for its definition. The Luminous Mysteries of the Rosary are usually recited on Thursdays. Catacaustics are to be observed as bright curves when light is allowed to fall upon a polished riband of steel, such as a watch-spring, placed on a table, and by varying the form of the spring and moving the. Unless otherwise indicated, the luminous flux is defined for photopic vision. In optics, the term caustic is given to the envelope of luminous rays after reflection or refraction in the first case the envelope is termed a catacaustic, in the second a diacaustic. Κ m = the maximum spectral luminous efficacy, (lumens per watt, lm/W) V(λ) = the spectral luminous efficiency function \Phi _ V\left ( \lambda \right )d\lambda , ![]() with its lucid and luminous case for our grounds against despair. The time rate of flow of radiant energy, evaluated in terms of a standardized visual response. Perhaps there is no meaning in it at all, the thought went on inside me, save that of.
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